Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenues	$ 40,862	$ 48,513
Cost of revenues (including depreciation of $50 and $105 in the years ended December 31, 2023 and 2022, respectively)	10,559	14,210
Gross profit	30,303	34,303
Operating expenses:
Selling and marketing	11,089	12,883
Research and development	17,145	29,388
General and administrative	12,779	15,507
Depreciation and amortization	7,345	7,452
Total operating expenses	48,358	65,230
Operating loss	(18,055)	(30,927)
Other income (expense):
Change in fair value of warrant and derivative liabilities	4,214	4,669
Loss on derecognition of debt	(3,991)	0
Interest expense, net	(6,354)	(2,680)
Other expense, net	(52)	(115)
Loss before provision for income taxes	(24,238)	(29,053)
Provision for income tax expense	158	226
Net loss	$ (24,396)	$ (29,279)
Loss per share:
Basic (in dollars per share)	$ (0.38)	$ (0.53)
Diluted (in dollars per share)	$ (0.38)	$ (0.53)
Weighted average shares outstanding:
Basic (in shares)	64,916	55,422
Diluted (in shares)	64,916	55,422